William fbishbiuth



(No Model.) I

W. FRISHMUTH.

GALVANIO GELL.

N0. 380,430. Patented Apr. 3, 1888.

:0 MW I 1 i-' m W i H 2 i C O We a o IINTTED STATES PATENT @rricn.

W'ILLIAM FRISHMUTH, OF PHILADELPHIA, PENNSYLVAXIA, ASSIGNOR TO WILLIAM H. GAW, OF SAME PLACE.

GALVANIC CELL.

SPECIFICATION forming part of Letters Patent No. 380,430, dated April 3, 1888.

Application filed January 26, 1887. Serial No. 225,505. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM Farsniuurn, of Philadelphia, Philadelphia county, Pennsylvania, have invented a new and useful Improvement in Galvanic Cells, of which the following is a specification.

My invention relates to a galvanic cell in which the positive or nonattacked element is of aluminium; and it consists in the construction and arrangement of said cell, as hereinafter more particularly set forth.

In the accompanying drawings, Figure 1 shows the elements and their connections in perspective. Fig. 2 is a vertical section, on line a: as of Fig. 1, of said elements in place in the containing-vessel. Fig. 3 shows the positive plate, its supporting-bar and threaded nut.

Similar letters of reference indicate like parts.

A is the contaiuingjar of any suitable ma terial.

B B are plates of zinc. Y

O isa bar of non-conducting material, preferably of wood. In said bar is a channel or groove, D.

E is a plate of aluminium, preferably per forated, as shown. Extending from one edge of said plate is a rod, F. Said rod passes through a vertical aperture in the bar 0. The upper end of said rod is threaded to receive the nut G. The edge of the aluminium plate E is received in the groove D on the bar 0, and is firmly held therein by setting up the nut G on the rod F after the latter has been passed through the aperture in said bar. The zinc plates B are disposed on each side of the bar 0, to which they are connected by bolts L. which pass through said plates and bar and are set up with nuts H. To one of the plates B is secured the circuit-connection I by means of one of said bolts L. Said connection con sists of a fiat portion, J, having a shoulder which rests upon the upper edge of the plate B, and above said shoulder there is a bindingpost, K. An aperture in the fiat portion J receives the bolt L. On the upper part of the nut G is a binding-post, M. The circuit-connection I, bolts L, nut G, and binding-posts K M are all of aluminium.

In practice,the elements assembled,as aforesaid, are placed in the cell A with any suitable eXciting-liquidsuch as sulphuric acid and water-when the cell yields a steady and uniform current of moderate strength.

It will be seen that by the aforesaid construction I connect together the elements of the cell in a simple, secure, and positive manner, and that I employ screws and bolts, which allow of all portions being easily separated. All bolts and other connecting portions being of aluminium, there is no danger of oxidation at places of contact and consequent breakage or deterioration of supports.

I claim- 1. The combination of the aluminium element E, having threaded rod F, the grooved bar 0, not G, zinc element B, and bolts L, substantially as described.

2. The combination of the aluminium element E, having threaded rod F, the grooved bar 0, nut G, zinc elements 13 B, bolts L, and circuitconnection Lsubstantially as described.

3. The combination of the aluminium element E, having threaded rod F, grooved bar C, nut G, zinc elements B B, bolts L, circuitconnection I, and binding posts K M, the said rod F, nut G, bolts L, circuit-connection I, and bindingposts K M being of aluminium, substantially as described.

WILLIAM FRISHMUTH.

IVitnesses:

HENRY Porsz, W. H. GAW. 

